Finding the Fourth Proportional to 9,958.79, 14,928.83 and 3,380.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,958.79 : 14,928.83 = 3,380.38 : x
2. Step 2: Convert to fraction form
   9,958.79/14,928.83 = 3,380.38/x
3. Step 3: Cross multiply
   9,958.79x = 14,928.83 × 3,380.38
4. Step 4: Simplify right side
   9,958.79x = 50,465,118.36
5. Step 5: Solve for x
   x = 50,465,118.36/9,958.79
6. Step 6: Final answer
   x = 5,067.39